Medik8 C Tetra Advanced 30ml

'C-Tetra Advanced brightens dull skin, reduces pigmentation, and protects against free radical damage for a clearer, more radiant look.'- Ekin Guney, MSc, Molecular Biology & Genetics, Member of Dermoi Scientific Advisory Board – Product Verification

Scientific Background:

THD Ascorbate (20%): potent lipophilic vitamin C for marked brightening/antioxidant defense.
• Min M., et al. J Cosmet Dermatol. 2024 — open-label THD-AA + acetyl zingerone combo improvements in photoageing.
https://onlinelibrary.wiley.com/doi/10.1111/jocd.16315
• CIR Safety Review (ethers/esters of ascorbic acid): tolerability of THD formulations.
https://www.cir-safety.org/sites/default/files/ethasb062017rep.pdf

Acetyl Zingerone: photostable antioxidant; redness/wrinkle signals in RCT.
• Dhaliwal S., et al. J Cosmet Dermatol. 2021.
https://pubmed.ncbi.nlm.nih.gov/32369655/

For inquiries about Medik8 Skincare products, please reach out to Dermoi's Skin Scientists at [email protected] or call (0)20 3963 9930 between 11am and 4pm Monday-Friday. Our experts are ready to provide comprehensive assistance and guidance tailored to your skincare needs.

Dermoi is proud to partner with Medik8, a leader in science-driven skincare innovation. Combining cutting-edge technology with potent ingredients, Medik8 targets everything from daily skin maintenance to advanced anti-aging solutions for visible, long-lasting results.

With a strong commitment to sustainability, Medik8 formulates high-performance, eco-conscious products that are as kind to the planet as they are to your skin.

At Dermoi, we carefully select Medik8’s most effective formulations, trusted for their ability to enhance skin health and radiance. Discover skincare that blends scientific expertise with sustainable practices for a glowing, youthful complexion.

How to Use Medik8 C Tetra Advanced

Apply 2–3 pumps to the face, neck, and décolletage each morning. Follow with moisturiser and always finish with SPF.

Medik8 C Tetra Advanced Q&A

What makes Medik8 C-Tetra Advanced different from other vitamin C serums?

Its 20% stabilised vitamin C and barrier-safe delivery system offer visible results in 7 days without irritation.

Can it  be used on sensitive skin?

Yes, it’s formulated to be gentle and effective, even on delicate skin, with 0% barrier disruption.

Does this product help with pigmentation?

Yes, it visibly brightens uneven skin tone and reduces the appearance of dark spots over time.

Is this serum sticky or oily?

No, it has a fast-absorbing, gel-serum texture that leaves skin smooth and fresh.

When should I apply it during my routine?

Apply it in the morning after cleansing and before your moisturiser and sunscreen.

Key Ingredients

Tetrahexyldecyl Ascorbate: Stabilised 20% vitamin C for dramatic brightening and antioxidant protection.

Phyto Exosomes: Deliver bioactives deep into skin to support resilience and reduce visible ageing.

Acetyl Zingerone: Super-antioxidant that neutralises ageing free radicals and boosts vitamin C performance.

Multi-Weight Hyaluronic Acid: Deep hydration for plumper, softer skin.                                                   

N-Acetyl Glucosamine: Refines texture and boosts natural hyaluronic acid production

Ingredients

Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene.